OMB APPROVAL

OMB Number: 3235-0167

Expires: November 30, 2010

Estimated average burden hours per response ... 1.50

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION
12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE
REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.

Commission File Number 001-08962

PINNACLE WEST CAPITAL CORPORATION

(Exact name of registrant as specified in its charter)

400 NORTH FIFTH STREET, P.O. BOX 53999, PHOENIX, AZ 85072-3999, 602-250-1000

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

SERIES A PARTICIPATING PREFERRED STOCK PURCHASE RIGHTS

(Title of each class of securities covered by this Form)

COMMON STOCK, NO PAR VALUE

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

     Please place an ü in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

Rule 12g-4(a)(1)	þ
Rule 12g-4(a)(2)	o
Rule 12h-3(b)(1)(i)	þ
Rule 12h-3(b)(1)(ii)	o
Rule 15d-6	o

     Approximate number of holders of record as of the certification or notice date: 0

     Pursuant to the requirements of the Securities Exchange Act of 1934 Pinnacle West Capital Corporation has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

Date: May 26, 2009	By:	/s/ Nancy C. Loftin
		Nancy C. Loftin, Senior Vice President, General Counsel and Secretary

Instruction: This form is required by Rules 12g-4, 12h-3 and 15d-6 of the General Rules and Regulations under the Securities Exchange Act of 1934. The registrant shall file with the Commission three copies of Form 15, one of which shall be manually signed. It may be signed by an officer of the registrant, by counsel or by any other duly authorized person. The name and title of the person signing the form shall be typed or printed under the signature.

SEC2069(02-08) Persons who respond to the collection of information contained
in this form are not required to respond unless the form displays
a currently valid OMB control number.